A display panel, a driving method thereof, and a display device are provided. The display panel includes: a filter layer including a light shielding region and a light transmitting region in each sub-pixel region, the light transmitting region in each of the sub-pixel regions surrounding the light shielding region; a light extracting layer including a light extracting element in each of the sub-pixel regions, the light extracting element being configured to provide light rays propagating toward the light shielding region of the sub-pixel region where the light extracting element is; and a light transmitting layer configured to provide sub-pixel regions at a bright state gratings distributed in a first plane and a second plane, so that the light rays provided by the light extracting element are diverged in the first plane and the second plane.

A system and method including, receiving a plurality of optical beams propagating in a first direction along a first plane in a coplanar beam pattern. The system and method include redirecting a first set of the plurality of optical beams to propagate in the first direction along a second plane. The system and method include redirecting a second set of the plurality of optical beams to propagate in a second direction along the first plane. The system and method include redirecting the second set of the plurality of optical beams propagating in the second direction along the first plane to propagate in the first direction along the first plane. The system and method include generating a multi-planar beam pattern by forwarding the first set of the plurality of optical beams and the second set of the plurality of optical beams through an optical element.

An electronic device includes a display panel and an optical deflector. The display panel irradiates an original light group corresponding to an original image displayed by the display panel and having a first resolution. The optical deflector receives the original light group and emits at least two output light groups having different transmission directions within a visual persistence duration. The at least two output light groups form an output image having a second resolution greater than the first resolution.

An electronic device such as a head-mounted device may have a display that produces a display image. The head-mounted device may have an optical system that merges real-world images from real-world objects with display images. The optical system provides the real-world images and display images to an eye box for viewing by a user. The optical system may use time interleaving techniques and/or polarization effects to merge real-world and display images. Switchable devices such as polarization switches and tunable lenses may be controlled in synchronization with frames of display images. Geometrical phase lenses may be used that exhibit different lens powers to different polarizations of light.

A dynamic lens for projecting different output beam shapes upon a target for heating, melting, or otherwise modifying the state of the target material. The dynamic lens includes a first light source of high power laser diodes generating a first light beam onto a lensing array with an LCOS device including a plurality of liquid crystal cells to curve and focus the first light beam into a second light beam forming the output beam shape on the target. A controller generates a control signal corresponding to the output beam shape. A single-point laser projects a third light beam tracing an outline of the output beam shape on the target to more clearly define the edge of the output beam shape. The single-point laser may be an IR fiber laser source scanned or traced by a scanner, such as a galvano scanner, directing the third light beam in two dimensions.

A beam-steering engine, comprising an optical element switchable between a first operational mode and a second operational mode, in the first operational mode of the optical element the beam-steering engine is configured to output an input light beam incident on the beam-steering engine along a first propagation direction and in the second operational mode of the optical element the beam-steering engine is configured to output the input light beam incident on the beam-steering engine along a second propagation direction. A transition of the optical element between the first and second operational modes is characterized by a transition time period that varies with a temperature of the optical element. The beam-steering engine further includes a device to control a temperature of the solid-state optical element to maintain the transition time period below a certain limit.

Methods and systems for wide-angle LiDAR are provided that utilize magnification optics that provide non-uniform resolution in different areas of a Field of View (FoV).

A method for directing light beams includes generating a light beam along a light path. A voltage differential is created by generating a voltage in a first and second linear electrode contacts arranged such that the first and second linear electrical contacts alternate with each other. The light path is altered by passing the light beam through a liquid crystal device coupled to the first and second linear electrical contacts.

A display substrate includes: a plurality of sub-pixel regions at a first base substrate, each of the plurality of sub-pixel regions including a light-blocking region and aperture regions located at opposing sides of the light-blocking region; and a first transparent electrode and a second transparent electrode within each of the plurality of sub-pixel regions, configured to drive a liquid crystal layer; wherein the first transparent electrode includes a first electrode unit located inside the light-blocking region and including a plurality of first sub-electrodes, wherein each of the plurality of first sub-electrodes are separated from two adjacent first sub-electrodes by a separation distance; and wherein the separation distance between two adjacent first sub-electrodes nearest to a center line of the light-blocking region is smaller than the separation distance between two adjacent first sub-electrodes nearest to an edge of the light-blocking region.

A typical liquid crystal lens includes liquid crystal sandwiched between transparent substrates, which are patterned with ring electrodes. Applying a voltage across the electrodes causes the liquid crystal molecules to rotate, changing their apparent refractive index and the lens's focal length. The ring electrodes are separated by gaps and get narrower toward the lens's periphery. If the ring electrodes are too narrower, their cannot switch the liquid crystal well. To address this problem, an inventive liquid crystal lens includes a substrate with a stepped surface that defines concentric liquid crystal regions with thicknesses that increase with lens radius. Each region is switched by a different set of ring electrodes, which may be on, under, or opposite the stepped surface. Within each region, the ring electrodes get narrower farther from the lens's center. But the ring electrodes' widths also increase with liquid crystal thickness, offsetting the decrease in width that degrades lens performance.